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Home >> Jeep >> 1998 >> Wrangler 4WD L6-4.0L VIN S >> Repair and Diagnosis >> Powertrain Management >> Ignition System >> Spark Plug >> Service and Repair >> Procedures >> Plug Gap Adjustment
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Plug Gap Adjustment

Setting Spark Plug Gap-Typical:




Check the spark plug gap with a gap gauge tool. If the gap is not correct, adjust it by bending the ground electrode. Never attempt to adjust the gap by bending the center electrode.

Spark Plug Gap = 0.89 mm (0.035 in).